General Maintenance; Wheel Drive - Raymarine ST4000+ Owner's Handbook Manual

81131_8.book Page 28 Thursday, October 7, 2004 11:03 AM
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SYMPTOM
The autopilot will not 'talk' to other
SeaTalk instruments
Position information not received
The autopilot will not auto advance to
the next waypoint
The control unit display shows a series
of rotating dashes
The control unit display shows a series
of stationary dashes
The control unit display shows NO DATA
Wheel drive: drive belt slips in Auto
mode (motor operates but drive does
not turn wheel)
Wheel drive: drive belt drags in
Standby mode

4.2 General maintenance

CAUTION:
The control unit, fluxgate compass, tiller drive and rudder
position sensor do not contain any user serviceable parts. These
products should be serviced only by authorized Raymarine
service technicians.

Wheel drive

Routine maintenance
After each trip, flush inside the drive unit by inserting a hose pipe
in the free slot on the back cover.
ST4000+ Wheel & Tiller Autopilots: Owner's Handbook
SOLUTION
Cabling problem – make sure all the cables are
connected properly.
Navigator not transmitting the correct position
data.
No bearing to waypoint information received
from the navigator.
Compass deviation correction is running (see
page 83
).
The control unit is not receiving data – check the
cabling.
The signals received by the navigator are too
weak for reliable navigation – refer to the
navigator handbook for further action.
OR
Wind trim data is not available – check the
connection to the wind instrument.
Tighten the clutch – see
Loosen the clutch – see
page 29 .
page 29 .